TY - BOOK AU - Mann,H.T. AU - Williamson,D. TI - Water treatment and sanitation: a handbook of simple methods for rural areas in developing countries SN - 090303123X : 1.50 U1 - 628.7 PY - 1976/// CY - London PB - Intermediate Technology Publications KW - Water KW - Purification KW - Handbooks, manuals, etc KW - Sewage KW - Rural health KW - Public health KW - Developing countries N1 - Bibliography: p. 89-90 ER -